There are two different Green Vaults here, one historical and one more recent (but still from the 1800s) and they are both spectacular in their own ways so make sure to visit both - you won't regret it. The historical one contains all types of gold, silver and jewels that are wondrous to see. Note that it is not permissible to take photos in this vault.
The new vault is more extensive, with slightly more recent treasures, which again are wonderful to see. Amazing sandstone carvings, decorated ostrich eggs, weapons, a stunning gold and porcelain teaset are just some of the wonders in this vault. There is even a cherry pit that has had 128 faces carved onto its surface! You are welcome to take photos in this vault, so have plenty of space on your camera.